Introduction to some DMN patterns and their value
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Businesses continuously make Business Decisions. Some of these decisions are strategic business decisions, but a lot are operational business decisions taken every day within every transaction. With the ever-increasing number of laws and regulations that may apply or regulate these operational business decisions, business analysts are more often called upon to document/specify how these business decisions are to be taken in order to provide transparency and to offer auditable traces of the actual decisions taken. In this insightful session, we will introduce how business analysts can use DMN to capture the requirements for operational business decisions, some of the recurring basic patterns in modeling these business decisions and will even show how to transform these decision models into actual executable business decision services.
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Introduction to some DMN patterns and their value
- 1. Introduction to some Basic Patterns and their Value How to capture Business Decisions using DMN Matteo Mortari Principal Engineer mmortari@redhat.com Denis Gagne CEO & CTO dgagne@trisotech.com
- 2. Trisotech.com Abstract Businesses continuously make Business Decisions. Some of these decisions are strategic business decisions, but a lot are operational business decisions taken every day within every transaction. With the ever-increasing number of laws and regulations that may apply or regulate these operational business decisions, business analysts are more often called upon to document/specify how these business decisions are to be taken in order to provide transparency and to offer auditable traces of the actual decisions taken. In this insightful session, we will introduce how business analysts can use DMN to capture the requirements for operational business decisions, some of the recurring basic patterns in modeling these business decisions and will even show how to transform these decision models into actual executable business decision services. INTRODUCTIONTOSOMEBASICPATTERNSANDTHEIRVALUE
- 3. Trisotech.com Agenda Context: What is Decision Automation? o Why is it important? o Decision Management and the DMN standard Some DMN patterns o Q&A o Score o Classification o Ranking Conclusions and Resources This session is intended to provide insights to Business Analysts INTRODUCTIONTOSOMEBASICPATTERNSANDTHEIRVALUE
- 4. Why is this important? Some Industry Analyst perspectives...
- 5. Cloud-native application development has become the preferred model for crafting the innovative applications required of digital transformation strategy. Modern programming techniques now exploit shared-distributed cloud architectures, portable container technology and discrete microservices designed to quickly assemble logic, automate processes and adapt when needed. — 451 Research, 2018
- 7. Trisotech.com Decision Management and the DMN standard
- 8. Trisotech.com What is DMN? WHAT ISDECISION AUTOMATION? ● A standard for Decision Management from OMG ● A sibling and complementary standard to BPMN (processes) and CMMN (case management) ● Standardizes decision automation from modelling to execution
- 9. Trisotech.com DMN Crash Course WHAT ISDECISION AUTOMATION?
- 10. Trisotech.com DMN Crash Course WHAT ISDECISION AUTOMATION?
- 11. Trisotech.com A Standard Based Approach Decisions have direct business value Decisions are better units of reusability Decisions are more manageable than rules Decisions align perfectly with processes (and cases) Decisions align perfectly with metrics and analytics DECISIONS NOT RULES
- 12. Trisotech.com Formal methodologies and best practices o Availability of books, training, best practices o Availability of trained professionals, cost reduction Tools to help with knowledge elicitation and modelling o A common ground where IT and Business can meet and collaborate Scalable, cloud based, dynamic runtimes o Means to draw results from the join effort Integrated BAM KPI monitoring and analysis for decision services o Means to optimize and improve Decision Management APRACTITIONER’S PERSPECTIVE
- 13. DMN and other Standards DMN with BPMN,CMMN, PMML ● CMMN: deals with “Cases” ○ Declarative, knowledge-intensive, weakly structured set of actions ○ Actions may start process fragments, and may invokes decisions ● BPMN: deals with “Business Processes” ○ Imperative, well structured, highly predictable workflows ○ May invokes decisions, and may invoke predictive models ● DMN: deals with “Decisions” ○ Declarative, well structured, side-effect free, decision evaluation ○ May invoke predictive analytic models ● PMML: deals with “Predictions” ○ Data driven, predictive analytic models ○ Given inputs, predicts outputs
- 14. Trisotech.com Main Benefit The model is the decision documentation The model is the decision specification The model is the decision logic The model is the decision automation code DMN
- 16. Trisotech.com Some DMN Patterns Core Patterns o Q&A Basic Patterns o Scoring o Classification/ Categorization Advanced Pattern o Ranking/Ordered list Other Patterns o Data Validation Patterns o Time Series Patterns • State Assessment (evaluation at a particular point in time) • Gap Assessment (vs a particular goal) HOWTOCAPTUREBUSINESSDECISIONSUSINGDMN
- 17. Trisotech.com Q&A A model which provides an answer to a question (Not necessarily a multiple-choice question) This is the core DMN pattern as all DMN decisions provide an answer to a question. o Each DMN decision has [optional] attributes question and allowedAnswers. o The question attribute is meant to contain a natural language question that characterizes the Decision such that the output of the decision is the answer to the question. o The allowedAnswers attribute is meant to contain a natural language description of the answers allowed for the question such as Yes/No, a list of allowed values, a range of numeric values etc COREPATTERNS
- 20. Trisotech.com Scoring A model through which various variables are weighted and result in a score. This score subsequently forms the basis for a decision, categorization, ranking, or advice This pattern is a frequent pattern in DMN Often uses a Decision Table to capture the decision logic BASICPATTERNS
- 25. Trisotech.com Classification/Categorization A model through which variables are recognized, differentiated, classified to be better understood This pattern is most often used to verbalize classes This pattern may use the scoring pattern as an input Some definitions o Classification: separating based on class labels o Clustering: separating based similarities without class labels o Categorization: subsuming classes (taxonomy) o Segmentation: complete and disjunct categorization BASICPATTERNS
- 29. Trisotech.com Classification based on Scoring HEALTHCARE
- 30. Trisotech.com Classification based on Scoring FINANCE
- 31. Trisotech.com Ranking/Ordered list A model through which the position, or rank, of each item in a collection is determined This pattern is more complex This pattern requires iteration over a scored list ADVANCEDPATTERN
- 34. DEMO: Patient discharge from surgical unit A simplified example See also http://hdl.handle.net/10589/150128
- 37. Conclusion • We provided a brief introduction to Decision Management and DMN • We introduced a series of DMN patterns to capture knowledge • We demoed interoperability between tools (Red Hat – Trisotech) Matteo Mortari Principle Engineer mmortari@redhat.com Denis Gagne CEO & CTO dgagne@trisotech.com
- 39. Trisotech.com Industry Specific Communities using DMN RESOURCES https://www.mismo.org/ https://www.bpm-plus.org
- 40. Trisotech.com General Communities about DMN RESOURCES https://dmcommunity.org https://dmn-tck.github.io/tck/
Editor's Notes
- it’s enough to just sum the parameters? … allegedly it depends who you ask, for the Italian guidelines also all parameters must be >0, which in the previous “app” did not consider http://www.siaarti.it/Ricerca/Raccomandazioni-per-l%E2%80%99area-di-recupero-e-l%E2%80%99assistenza-post-anestesiologica.aspx http://www.siaarti.it/SiteAssets/Ricerca/Raccomandazioni-per-l%E2%80%99area-di-recupero-e-l%E2%80%99assistenza-post-anestesiologica/linee_guida_file_33.pdf Not medical advice. Always seek professional medical advice. The content on this repository is provided for informational purposes only and is not intended as a medical advice, or a substitute for the medical advice of a doctor/physician. The content on this repository is intended only as a methodological exercise to translate a scientific paper publication into a standardised executable DMN model.